Wiring for 2nd detached building

[carhouse]

I have a detached garage that has a 50 amp service from the house panel.
I am getting a shed that I want to use the power from the detached garage.

What is the correct way to do this?

Can I put a 50 amp breaker in garage panel then put another 50 amp breaker in the shed panel?

Or?

I was thinking of #6? What type of wire?

I will be running the wire in pvc inside the detached garage then Rigid conduit when it goes outside and in the ground, so I don't have to dig as deep.

Thanks for all the suggestions.

 

[TractorJeff]

First response you get will be a question like:
What is the distance between the buildings?

 

[ducatithunder]

Are you looking to just throwing up a couple power outlets and lights? Sounds like your planning on adding a sub panel in the shed. Whats the distance? What do you plan on powering in a shed that requires 50 amps?

Once you know what you want to do and the power needed you can decide on what size wire. If you run the wire get the XHHW vs the THHN. Its rated for wet and dry on the 90deg table vs just dry. IF you run this in conduit in the ground it is classified as wet location and the amp rating for THHN is then off the 75Deg table vs the 90Deg which equates to ~10 amp reduction. 6AWG would be good for 65Amps with THHN and 75Amps for XHHW.

 

[carhouse]

From the panel in the garage to the panel in the shed apx 60 feet.

I was planning on relocating the air compressor and having a few (3 or so) lights with one or two circuits for power tools if needed. Not much, but was thinking of running the max 50 amp, that way I can't say I should of... or jn case I wanted to use the welder in there etc.

I will be running air lines also from the shed to the garage.

The shed is 14x32.

 

[wyliesdiesels]

if you want 50a and its going in pipe, run 2 black #8 THWN, 1 white #8 THWN and 1 GREEN #10 for the EGC. you will need 2 ground rods and an isolated neutral bar. you dont need a main breaker in the subpanel unless you will have more than 6 breaker handles

 

[teamextreme]

I wouldn't recommend rigid underground. You're saving some digging now so you can re-dig it again in 5 or 10 years when the metal is completely corroded. If you want to go crazy money-wise they make plastic coated rigid, or you could try taping it like the plumbers do, but I'm not sure how effective that would be. I would just run PVC.

 

[dcg9381]

you dont need a main breaker in the subpanel unless you will have more than 6 breaker handles

Panels come in various flavors, he's right that you don't need one with a main breaker. If you do get one with a main breaker, the breaker size does not matter as it's protected by the upstream 50A breaker.